This visible-light image was captured by the Hubble Space Telescope to celebrate its 28th anniversary. It shows the heart of the Lagoon Nebula, a region about 4,000 light-years across.NASA, ESA, and STScI

This image, captured by the Hubble Space Telescope, shows the Lagoon Nebula in infrared light. The region visible in this image is about 4 light-years across.NASA, ESA, and STScI

Hubble Space Telescope revisited the famous Pillars of Creation, revealing a sharper and wider view of the structures in this visible-light image.NASA, ESA, and the Hubble Heritage Team (STScI/AURA)

The crab nebula was created as a result of a supernova explosion. The orange filaments are the tattered remains of the star and consist mostly of hydrogen. The blue in the filaments in the outer part of the nebula represents neutral oxygen. Green is singly ionized sulfur, and red indicates doubly ionized oxygen.NASA, ESA, J. Hester and A. Loll (Arizona State University)

This Hubble image of the Bubble Nebula, about 7,100 light-years away, was released on the 26th anniversary of the telescope's launch.NASA, ESA, and the Hubble Heritage Team (STScI/AURA)

An image captured by the Hubble Space Telescope shows a sparkling jewel box full of stars at the heart of the Milky Way.NASA, ESA, and T. Brown (STScI)

NGC 3972 is a spiral galaxy located about 65 million light-years away and is about 45,000 light-years across in size.NASA, ESA, A. Riess (STScI/JHU)

Spiral galaxy NGC 1015 is seen directly head-on in this Hubble image. The galaxy, which is about 67,000 light-years across, is located 118 million light-years away from Earth.NASA, ESA, A. Riess (STScI/JHU)

The Hubble image shows the central region of the Tarantula Nebula in the Large Magellanic Cloud. The young and dense star cluster R136, containing hundreds of young, blue stars, can be seen at the lower right of the image.NASA, ESA, and P. Crowther (University of Sheffield)

In this Hubble image, a newborn star shoots twin jets out into space as a sort of birth announcement to the universe. This took place 1,350 light-years away, in a stellar nursery called the Orion B molecular cloud complex.NASA and ESA

The white dwarf star Stein 2051 B occupies the center of this Hubble image, and is located 17 light-years away. The smaller star just below it is actually 5,000 light-years from Earth.NASA, ESA, and K. Sahu (STScI)

This image of the remains of supernova 1987A combines multi-wavelength data from three different telescopes, including Hubble. The supernova was 163,000 light-years from Earth in the Large Magellanic Cloud.NASA, ESA, and A. Angelich (NRAO/AUI/NSF)

This image captured by Hubble shows the debris disk around a star located 169 light-years away. Planets form in this disk around stars.NASA, ESA, G. Schneider (University of Arizona), and the HST/GO 12228 Team